13
Paolo Gobbo 13 Data e Web Mining Sequential APrioriAll Pruning  topological constraint  every subsequent pair of pages in a sequence the former one must have a hyperlink to the latter one  string matching costraint  session S supports a pattern P if and only if P is a subsequence of S not violating string matching support not support during candidate sequence generation before calculating their support

17
Paolo Gobbo 17 Data e Web Mining Agent Simulator STP: Session Termination Probability LPP: Link from Previous page Probability LPC: Link from Current page Probability NIP: New Initial page Probability probability of terminating session probability of referring next page from one of the previously accessed pages except the most recently accessed one probability of referring next page from the most recently visited page probability of selecting one of the starting pages of a web site during the navigation Agent Simulator Parameters